Mw.reset() update the deck label when it has been deleted

[dae]

I developed a feature to execute a background task after sync. But it sometime pops up an error when user is closing the collection.
The error:
Anki 23.12.1 (1a1d4d5) (ao)
Python 3.9.15 Qt 6.5.3 PyQt 6.5.3
Platform: macOS-14.3.1-arm64-arm-64bit

Traceback (most recent call last):
File "aqt.taskman", line 142, in _on_closures_pending
File "aqt.taskman", line 86, in
File "/Users/jspear/Library/Application Support/Anki2/addons21/759844606/schedule/reschedule.py", line 171, in on_done
mw.reset()
File "aqt.main", line 851, in reset
File "aqt.main", line 803, in _synthesize_op_did_execute_from_reset
File "_aqt.hooks", line 3840, in call
File "aqt.deckchooser", line 120, in on_operation_did_execute
File "aqt.deckchooser", line 82, in _update_button_label
RuntimeError: wrapped C/C++ object of type QPushButton has been deleted

A quick and dirty fix would be to check for sip.isdeleted() here. DeckChooser has a cleanup() method that appears not to be called in this case. The inconsistent destruction/garbage collection of the C++ and Python side is a bit of a mess and mostly our fault, but I'm not sure it's worth spending a lot of effort trying to fix it, if a web/JS UI is the future.